Thirty-two defendants, including two doctors and eight nurses, were charged in Miami with various fraud schemes.

Another 21 defendants were charged in Detroit, along with 11 in Chicago, 10 in Brooklyn, New York, 10 in Tampa, Florida; nine in Houston; seven in Dallas; six in Baton Rouge, Louisiana; and five in Los Angeles.

Medicare covers all Americans 65 and older. About 45 million elderly and disabled Americans are enrolled in taxpayer-funded Medicare plans.

An estimated 60,000 Indian-origin doctors are among about a million doctors in the US.

In Chicago, among those arrested was Indian American Jaswinder Rai Chhibber, 48, president and owner of a medical clinic.